Complete degradation of dimethyl isoplithalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sediment
Li, H; Gu, JD; jdgu@hkucc.hku.hk
2007
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
卷号380期号:40546页码:181-187
摘要Two bacterial strains Klebsiella oxytoca Sc and Methylohacteritent mesophilicum Sr were isolated and identified from enrichment cultures using, dimethyl isophthalate (DMI) as the sole source of carbon and energy, and mangrove sediment as an inoculum. DMI was rapidly transformed by K. oxytoca Sc in the culture with formation of monomethyl isophthalate (MMI), which accumulated in the culture medium. M. mesophilicum Sr, incapable of utilizing DMI, showed high capability of degrading MMI to a transitory intermediate isoplithalic acid (IPA), which was further mineralized by this strain. The biochemical pathway of DMI degradation by these two bacteria in a consortium was proposed: DMI to MMI by K. oxytoca Sc, MMI to IPA by M. mesophilicum Sr, and IPA by both K. oxytoca Sc and Al. mesophilicum Sr based on the identified degradation intermediates. The consortium comprising K. oxytoca Sc and M. mesophilicum Sr was effective in mineralization of DMI. The results suggest that complete degradation of environmental pollutant DMI requires the biochemical cooperation between different microorganisms of the mangrove environment. (C) 2006 Elsevier B.V. All rights reserved.
部门归属Univ Hong Kong, Dept Ecol & Biodivers, Lab Environm Microbiol & Toxicol, Hong Kong, Hong Kong, Peoples R China; Chinese Acad Sci, S China Sea Inst Oceanog, LED, Key Lab Trop Marine, Guangzhou 510301, Peoples R China; Univ Hong Kong, Dept Ecol & Biodivers, Lab Environm Microbiol & Toxicol, Hong Kong, Hong Kong, Peoples R China
关键词Dimethyl Isophthalate Monomethyl Isophthalate Lsophthalic Acid Biodegradation Biochemical Cooperation Plasticizers
学科领域Environmental Sciences
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收录类别sci
资助项目LED
WOS记录号WOS:000247737700020
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被引频次:41[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5879
专题热带海洋环境国家重点实验室(LTO)
通讯作者jdgu@hkucc.hku.hk
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Li, H,Gu, JD,jdgu@hkucc.hku.hk. Complete degradation of dimethyl isoplithalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sediment[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2007,380(40546):181-187.
APA Li, H,Gu, JD,&jdgu@hkucc.hku.hk.(2007).Complete degradation of dimethyl isoplithalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sediment.SCIENCE OF THE TOTAL ENVIRONMENT,380(40546),181-187.
MLA Li, H,et al."Complete degradation of dimethyl isoplithalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sediment".SCIENCE OF THE TOTAL ENVIRONMENT 380.40546(2007):181-187.
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